Cisco XR 12000 Series isolates public and private services. Cisco IOS XR Software is a unique self-healing, self-defending operating system. It equips the Cisco XR 12000 with distributed processing intelligence and robust quality-of-service and multicast mechanisms that help you scale capacity while accommodating customers.

The XR 12000 Series also supports both fixed and modular line cards (LCs), including a flexible Multi-Service Blade (MSB), which provides integral, route-aware virtual firewall and video/voice Session Border Control (SBC), eliminating the need for external appliances. And the I-Flex design offers a new portfolio of modular interfaces featuring shared port adapters (SPAs) and SPA interface processors (SIPs).